Hey there!
Well first of all, don't despair, it's going to be ok, I mean that. I started losing my hair at 19 and a few people called me out on it and it decimated my confidence, but confidence is simply a state of mind! No one is going to live your life for you so you have to make the most of every day, I didn't do this and I regret it greatly.
Fast forward 12 years and I am still losing my hair, just very slowly. I got on Propecia early on and it has essentially bought me a ton of time. It not too much further gone than when I first noticed it. I am married and have a great job, life can be good- you just need to let it be.
My advice for you is get on Propecia once you have read up on (rare) possible side effects. Then if you want a chance of regrowth, you need to get on rogaine. Give it time and enjoy your life.
James